| Component: (Network and Table) | |
|---|---|
| Network | 194 - Disclosure - Segments and Geographic Area Analysis - Revenues from Major Customers that Contributed More than 10% of Total Revenues (Detail) (http://www.diamondoffshore.com/taxonomy/role/DisclosureSegmentsAndGeographicAreaAnalysisRevenuesFromMajorCustomersThatContributedMoreThan10OfTotalRevenues) |
| Table | Schedule of Revenue by Major Customers, by Reporting Segments [Table] |
| Reporting Entity [Axis] | 0000949039 (http://www.sec.gov/CIK) |
| Concentration Risk By Benchmark [Axis] | Sales Revenue Net [Member] |
| Revenue, Major Customer [Line Items] | Period [Axis] | |||||
|---|---|---|---|---|---|---|
2013-01-01 - 2013-12-31 | 2012-01-01 - 2012-12-31 | 2011-01-01 - 2011-12-31 | ||||
| Major Customers [Axis] | Major Customers [Axis] | Major Customers [Axis] | ||||
| Petrobras [Member] | Ogx [Member] | Petrobras [Member] | Ogx [Member] | Petrobras [Member] | Ogx [Member] | |
Percentage of revenues from major customers | ||||||